Why Have Attunements?

[swirly]

Or, more accurately, most of us interested in "the hassle" often couldn't find a tank/healer willing to help out, because they'd already done it, and refused to go back...

This reminds me a bit of the netherwing attunement where once you have attuned you are no longer able to help others with it (unless you are a healer) since you can't do anything to the mob you need to kill for it. As more and more people become attuned it becomes harder and harder to find groups even able to help you.